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https://issues.apache.org/jira/browse/IVYDE-317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13437316#comment-13437316
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Nicolas Lalevée commented on IVYDE-317:
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As far I could see the state a classpath container is maintained by Eclipse
itself. But for some reason, project open/close messes with it. I have open an
issue: https://bugs.eclipse.org/bugs/show_bug.cgi?id=387535
There is a workaround implementable in IvyDE, which is already done in the
Maven plugin for instance: make the plugin persist itself the containers
contents rather than relying on Eclipse's API.
> IvyDE classpath containers become empty on eclipse/MyEclipse startup
> ---------------------------------------------------------------------
>
> Key: IVYDE-317
> URL: https://issues.apache.org/jira/browse/IVYDE-317
> Project: IvyDE
> Issue Type: Bug
> Components: classpath container
> Affects Versions: 2.2.0.beta1
> Reporter: Michael Ondrejko
> Priority: Blocker
>
> As J.C. mentioned, we have found that when we enable "Resolve in Workspace"
> for the IvyDE classpath containers, we consistently see that containers
> become empty in our projects. When this occurs, it may be as simple as
> performing an Ivy -> Refresh (or combination of Ivy->Refresh, Ivy->Resolve,
> and file Refresh). However, it may also require removing and re-adding the
> classpath container manually.
>
> While attempting to setup a test-case to demonstrate the problem, for some
> time, I was not able to consistently reproduce any of the issues that I
> encountered. Some of the issues that I did see along the way include
> • when changing ivy.xml directly, upon save only one (of two in my
> case) classpatch containers would be updated to reflect the changes
> • when importing a project, sometimes one or more/all classpath
> containers would not be created. A manual Ivy->refresh was required
> • losing the export setting on one of the Ivy classpath containers
> • random disappearing IvyDE classpath containers
>
> What I eventually found is that in our application project environment, we
> have Eclipse set to refresh files on startup. When I set this in my test
> environment, I consistently see the behavior described where IvyDE classpath
> containers disappear on eclipse startup. Note that I have Ivy set to “Do
> Nothing” and “Refresh” and both have consistently resulted in the issue.
>
> I have attached the sample projects from my investigation. Unfortunately, I
> was unable to include the eclipse workspace itself due to file size
> limitations. I believe the only significant change in the eclipse environment
> is to set Refresh on startup in General->Startup and Shutdown. Let me know if
> you have any other questions.
>
> Thanks and I hope this helps you resolve the issue more quickly.
> ---
> We've found it gets worse with "Resolve in Workspace" active. Michael
> is actively working on a test case that doesn't require us to send you
> our entire codebase. :)
> ---
> It appears that when I shut down and restart Eclipse the Ivy Classpath
> Container loses its contents. I could swear sometimes it doesn't, but almost
> always when I restart Eclipse, it is empty until it does an automatic Resolve
> when I bring up Eclipse.
> What we'd like to see is that the Ivy Classpath Container actually persist
> its contents, even between Eclipse restarts. So that when Eclipse comes up,
> no resolve is necessary. And at times, I really don't want to do a resolve,
> because it will trigger download of stuff I really am not ready for yet. I'd
> like to control when I resolve and get new stuff downloaded, so right now the
> only choice I have is to either check the checkbox to Resolve on Launch, or
> do a manual resolve. This usually also causes an entire rebuild of the
> projects, which sucks, because that can take 10-40 minutes depending on how
> good the hardware is.
> So, is there a way to make the Classpath Container remember its contents,
> even between Eclipse restarts, and never lose it until the project is either
> deleted from the workspace, or another resolve is done?
> It is supposed to work. But like you I have noticed that sometimes it looses
> its content too, which is boring me too. I have never took time to
> investigate though.
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